Weft-replenishing mechanism for looms.



No. 882,106. PATENTED MAR. 17, 1908. J. GABLBR.

WEFT REPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED MAR.11. 1903.

3 SHEBTS-SHEET 1.

No. 882,106. PATENTED MAR. 17, 1908. J. GABLBR.

WEFT REPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED MAR. 11. 1903.

3 SHBETSSHBET 2.

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PATENTED MAR. 17, 1908.

J. GABLER.

- WEPT EEPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED MAR.11. 1903.

a SHEETS-SHEET s.

aim @1320- courses 0 UNITED STATES PATENT OFFICE.

JOHANNES ,GABLER, or HORNBERG, GERMANY, ASSIGNOR To METIERS GABLER, OFBASEL, SWITZEREAND.

SOCIETE ANONYM DES WEFT-RE-PLENISHING MECHANISM FOR LooMs.

Specification of Letters Patent Patented March 17, 1908.

Application filed March 11, 1903. Serial No. 147,292.

, To all whom it"may' concern:

Be it known that I, JQHANNES GABLER, weaving foreman, a subject of theGerman Emperor, residing at Hornberg, Gutache strasse, the Grand Duchyof Baden, Germany, have invented a new and useful Weft- ReplenishingMechanism for Looms, of which the following is a specification.

In the looms heretofore employed, the slots or openings of the shuttlesare placed vertically with relation to the bottom of the lay or batten.In my invention the shuttle is turned on one side'in the batten so as tohave the slot opening for bobbins which are who inserted lengthwise,horizontal to the bottom rail of the batten. Furthermore, in the devicesheretofore employed for the automatic insertion and exchan e of shuttlesand bobbins, respectively, on y a limited small number of the same couldbe stored up in the magazine for-the weaving operation, and in mostcases these constructions necessitated special construction of looms. MyInvention is distinguished by the possibility in only shuttle looms ofmounting any suitable number of bobbins upon extension rails providedwith .a scale and with olpenguide openings for the said bobbins for t eautomatic insertion of the bobbins and for the removal of the same fromthe shuttle upon'the beating up of the loom, which may be rovided eitherwith foot or top actuated pic er staves. p o

The new apparatus is adaptable to any necessity of changing theconstruction there is lowered upon .the empt bobbin only containing buta few i yarn, this operating the apparatus by means of series of leversand by an ,ad-

justable cam.

' Figure 1 of the accom anying drawings I shows a plan View, the b0 binready for in- 5 sertion in front of the binder 1", and also the fullbobbin in place inthe shuttle .t. There may be any suitable number ofsuch bobbins which are mounted in slots 2 of the graduated bars orrails. Y The lowest bobbin is in 3. position to be pushed into theshuttle. I As soon as ayfull bobbin has been inserted in the 'shuttlethe, racks ,z, together with the full bobbins mounted in the slots 2 candescend by one bobbin thickness; Fig. 2 shows the 3 weft detector 0rfeeler f in plan view, which the thread from the bobbin is led bars orrails .2 to be m moves forward. A spring kind of looms now in usewithout the like a finger key, is extended toward the lay and rests uponthe bobbin, the longitudinal section being shown in the Fig. 7 on theline CD; Fig. 3 shows in front view the bobbins ready for insertion andmounted upon the sectional orgraduated bars 2, in combination withlevers and connection with the feeler; Fig. 4 shows the frame of theloom provided withthe bobbin exchange mechanism; Fig. 5 ows a plan andsectional view after line AB in Fig. 5 of the shuttle t with the Weftbobbin 8 in position; and Fig. 6 represents the weft bobbin ready forinsertion.- Fig. 7 is a detail sectional view taken on line CD of Fig.2.

According to Figs. 5 and 6 the bobbin frame 0 and the thread guide 0consists of two separate parts, and consequently they are not connectedwith each other. For each of the bobbin frames 0 there is acomplementary thread guide 0 through which and, the two parts are theninserted in the slots of the pushed simultaneously into the shuttle atthe time replenishment is desired. The thread guide 0 is of cylindricalform and of such dimensions as to'accurately fit into an aperture formedin the shuttle, into which it is pushed when the arm bears against theend walls of the slot an thereby holds the thread guide 0 in position.The bobbin frame 0 is similarly formed, a spring thereon acting in asimilar manner to that just described, the two springs retaining theholder in position until it is displaced by the insertion of a newbobbin.

Theaction of the apparatus is as follows: The feeler f mounted to slideon the loom frame is urged forward, a spiral spring pushing the saidfeeler. On the movement of the shuttle to the ri ht, and at the beat ofthe lay, the feeler wi enter into the aperture inthe shuttle and bearagainst the bobbin contained therein. If there is still sufficient yarnupon the bobbin, the feeler will be pressed back, the lever a restingin'an elevated osition upon the incline f of fork f. If the obbin hasbecome nearly exhausted leaving only a'few turns of yarn thereon, thefeeler will straddle the weft bobbin, and the. lever a, will move fromthe position in which it was retained by the incline on the feeler f.(See Fig. 7)." This results in the rocking shaft (1 connected to leverbbeing turned, a

link '5 connected therewith being raised. The extension of lever arm 91'acts upon the projecting stud k of lever 7c, while otherwise if the linki has not been raised by the above described mechanism brought intoaction by the -movement of the weft feeler, the arm 1" will ass clear ofit during its shifting at every revo ution of the adjustable cam Z. Theadjustable cam Z now operates the swinging lever 07, causing the leveris to turn upon its point of support '8, the said leverk pushing thebobbin actuating levers m and m forward and pushing the bobbin in ahorizontal direction out of the supporting bars 2 into the shuttle t,thereby ejecting the empty bobbin throughthe Wall 9, (Fig. l), of theshuttle.

Inc/the foregoing description, two devices have been described which arerequisite for replenishing spent bobbins by full ones in the shuttle.

I will now proceed to describe the arrangement by means of which thefollowing on of further full bobbins from the magazine is effected, soas to be in a position ready for the next changing operation. As soon asthe weft bobbln has been inserted in the shuttle, the springs p and willcome into action, bringing the lever and '5 back to their originalposition. In the course of the return movement of the lever 7c, the pawlw is disengaged from ratchet wheel 2 by means of the connecting rod 1),attached to the lever 76 so that the ratchet wheel can revolve to anextent corresponding to the thickness of a bobbin,in consequence ofwhich, the racks 2, together with the magazine of full bobbins mountedon the bars, can descend by one bobbins thickness, so that a fullbobbinis brought into position opposite binder 7, ready for insertion inshuttle t. whole series of bobbins mounted upon the bars are used up,the said bars. are raised by means of racks 2 and gear wheels z, onspindle d by rotating crank g byhand, when the magazine can be refilled.

What I claim and desire to secure by Letters-Patent is After the 1. Inan automatic a paratus for exchanging and inserting bob ms in theshuttle for looms operating with one shuttle, comprising a batten or lay1',the arrangement of a shuttle t, provided with a lateral slot in frontand a slotted Wall 9 behind, a slotted binder 1", a thread guide 0 and abobbin frame 0 in connection with pressure levers m and m which serve tointroduce the bobbin. horizontally into the shuttle t and causing theejecting of the empty bobbin from the shuttle through the slotted wall gof the batten and by the pressure of the full bobbin, the slot openin ofthe shuttle for the reception of the b0 bin being parallel with thebottom' rail of the batten and allowi the insertion of the bobbin fromthe front through the slot 0 enin of the binder 1".

2. n a bobbins into and from shuttles, a yieldingly arranged Weftdetector or feeler f, which passes like a caliper over the bobbin assoon as it is almost exhausted and contains only a-few courses of yarn,and ives, in connection with a lever a, by whic moving a lever b israised, and a rock shaft d turned, a

leverage .to a link '8, thereby transferring the. motion of a lever '11to a lever 1c, the latter pushing the new bobbin ready for insertion f,-

1n the hopper into the shuttle t.

3. In a device for inserting and ejecting weft bobbins for looms,

a hopper consisting 1n two graduated or sectlona are provided evice forinserting and ejecting with lateral guide holes 2 for the reception of asuitable number of weft bobbins and a ratchet wheel m and ratchet pawlsw and a:-

to operate said sectional rack bars to regulate the feed of the saidbars, so as to re lace every exhausted bobbin in the shuttle y afullbobbin in succession upon the advance movement of the batten or lay.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

J OHANNES GABLER.

Witnesses:

' J AOOB ADRIAN, W. HARRIS,

